-
公开(公告)号：US20230073958A1
公开(公告)日：2023-03-09
申请号：US18055576
申请日：2022-11-15
发明人： Michal Rakowski , Petar I. Todorov , Yusheng Bian , Won Suk Lee , Asif J. Chowdhury , Kenneth J. Giewont
摘要： Disclosed is a photonic structure and associated method. The structure includes a closed-curve waveguide having a first height, as measured from the top surface of an insulator layer, and an outer curved sidewall that extends essentially vertically the full first height (e.g., to minimize signal loss). The structure includes a closed-curve thermal coupler and a heating element. The closed-curve thermal coupler is thermally coupled to and laterally surrounded by the closed-curve waveguide and has a second height that is less than the first height. In some embodiments, the closed-curve waveguide and the closed-curve thermal coupler are continuous portions of the same semiconductor layer having different thicknesses. The heating element is thermally coupled to the closed-curve thermal coupler and thereby indirectly thermally coupled to the closed-curve waveguide. Thus, the heating element is usable for thermally tuning the closed-curve waveguide via the closed-curve thermal coupler to minimize any temperature-dependent resonance shift (TDRS).
-
公开(公告)号：US20230003937A1
公开(公告)日：2023-01-05
申请号：US17363846
申请日：2021-06-30
发明人： Michal Rakowski , Petar I. Todorov , Yusheng Bian , Won Suk Lee , Asif J. Chowdhury , Kenneth Giewont
摘要： Disclosed is a photonic structure and associated method. The structure includes a closed-curve waveguide having a first height, as measured from the top surface of an insulator layer, and an outer curved sidewall that extends essentially vertically the full first height (e.g., to minimize signal loss). The structure includes a closed-curve thermal coupler and a heating element. The closed-curve thermal coupler is thermally coupled to and laterally surrounded by the closed-curve waveguide and has a second height that is less than the first height. In some embodiments, the closed-curve waveguide and the closed-curve thermal coupler are continuous portions of the same semiconductor layer having different thicknesses. The heating element is thermally coupled to the closed-curve thermal coupler and thereby indirectly thermally coupled to the closed-curve waveguide. Thus, the heating element is usable for thermally tuning the closed-curve waveguide via the closed-curve thermal coupler to minimize any temperature-dependent resonance shift (TDRS).
-
公开(公告)号：US11500198B2
公开(公告)日：2022-11-15
申请号：US17146509
申请日：2021-01-12
发明人： Won Suk Lee , Thomas G. Weeks, III , Michal Rakowski , Yusheng Bian , Roderick A. Augur , Alexander L. Martin , Petar I. Todorov
摘要： Disclosed are a system, method, software tool, etc. for generating a layout indicating the paths for balanced optical waveguides (WGs) of a WG bus. A grid is used to route paths, which extend between corresponding first and second input/output nodes, respectively, and which are within boundaries of a defined area. The paths are automatically rerouted to balance for length and number of bends without overly increasing the lengths of or number of bends in those paths and further without moving the input/output nodes or falling outside the established boundaries. Automatic rerouting of the paths is performed iteratively based on results of various intersection operations related to different path-specific sets of points on the grid to determine when and where to insert additional linear segments and bends into the paths. Then, a layout indicating the balanced paths is generated. Also disclosed is a WG bus structure with balanced optical WGs.
-
公开(公告)号：US11555964B1
公开(公告)日：2023-01-17
申请号：US17363846
申请日：2021-06-30
发明人： Michal Rakowski , Petar I. Todorov , Yusheng Bian , Won Suk Lee , Asif J. Chowdhury , Kenneth J. Giewont
摘要： Disclosed is a photonic structure and associated method. The structure includes a closed-curve waveguide having a first height, as measured from the top surface of an insulator layer, and an outer curved sidewall that extends essentially vertically the full first height (e.g., to minimize signal loss). The structure includes a closed-curve thermal coupler and a heating element. The closed-curve thermal coupler is thermally coupled to and laterally surrounded by the closed-curve waveguide and has a second height that is less than the first height. In some embodiments, the closed-curve waveguide and the closed-curve thermal coupler are continuous portions of the same semiconductor layer having different thicknesses. The heating element is thermally coupled to the closed-curve thermal coupler and thereby indirectly thermally coupled to the closed-curve waveguide. Thus, the heating element is usable for thermally tuning the closed-curve waveguide via the closed-curve thermal coupler to minimize any temperature-dependent resonance shift (TDRS).
-
公开(公告)号：US11803012B2
公开(公告)日：2023-10-31
申请号：US18055576
申请日：2022-11-15
发明人： Michal Rakowski , Petar I. Todorov , Yusheng Bian , Won Suk Lee , Asif J. Chowdhury , Kenneth J. Giewont
CPC分类号： G02B6/125 , G02F1/0147 , G02B6/136 , G02B2006/12061 , G02B2006/12147
摘要： Disclosed is a photonic structure and associated method. The structure includes a closed-curve waveguide having a first height, as measured from the top surface of an insulator layer, and an outer curved sidewall that extends essentially vertically the full first height (e.g., to minimize signal loss). The structure includes a closed-curve thermal coupler and a heating element. The closed-curve thermal coupler is thermally coupled to and laterally surrounded by the closed-curve waveguide and has a second height that is less than the first height. In some embodiments, the closed-curve waveguide and the closed-curve thermal coupler are continuous portions of the same semiconductor layer having different thicknesses. The heating element is thermally coupled to the closed-curve thermal coupler and thereby indirectly thermally coupled to the closed-curve waveguide. Thus, the heating element is usable for thermally tuning the closed-curve waveguide via the closed-curve thermal coupler to minimize any temperature-dependent resonance shift (TDRS).
-
公开(公告)号：US20220221714A1
公开(公告)日：2022-07-14
申请号：US17146509
申请日：2021-01-12
发明人： Won Suk Lee , Thomas G. Weeks, III , Michal Rakowski , Yusheng Bian , Roderick A. Augur , Alexander L. Martin , Petar I. Todorov
摘要： Disclosed are a system, method, software tool, etc. for generating a layout indicating the paths for balanced optical waveguides (WGs) of a WG bus. A grid is used to route paths, which extend between corresponding first and second input/output nodes, respectively, and which are within boundaries of a defined area. The paths are automatically rerouted to balance for length and number of bends without overly increasing the lengths of or number of bends in those paths and further without moving the input/output nodes or falling outside the established boundaries. Automatic rerouting of the paths is performed iteratively based on results of various intersection operations related to different path-specific sets of points on the grid to determine when and where to insert additional linear segments and bends into the paths. Then, a layout indicating the balanced paths is generated. Also disclosed is a WG bus structure with balanced optical WGs.
-
-
-
-
-
搜索结果
6 条记录 (耗时 0.014 秒)
